// JavaScript Document

// AJAX GET FUNCTION
function makeHttpRequest(url, callback_function, return_xml) { 
   var http_request = false; 
   
   if (window.XMLHttpRequest) { // Mozilla, Safari,... 
       http_request = new XMLHttpRequest(); 
       if (http_request.overrideMimeType) { 
          // http_request.overrideMimeType('text/xml'); 
       } 
   } else if (window.ActiveXObject) { // IE 
       try { 
           http_request = new ActiveXObject("Msxml2.XMLHTTP"); 
       } catch (e) { 
           try { 
               http_request = new ActiveXObject("Microsoft.XMLHTTP"); 
           } catch (e) {} 
       } 
   } 

   if (!http_request) { 
       alert('Unfortunately you browser doesn\'t support this feature.'); 
       return false; 
   } 
   
   http_request.onreadystatechange = function() { 
       if (http_request.readyState == 4) { 
           if (http_request.status == 200) { 
               if (return_xml) { 
                   eval(callback_function + '(http_request.responseXML)'); 
               } else { 
                   eval(callback_function + '(http_request.responseText)'); 
               } 
           } else { 
               alert('There was a problem with the request.(Code: ' + http_request.status + ')'); 
           } 
       } 
		 } 
   http_request.open('GET', url, true); 
   http_request.send(null); 
}

// AJAX POST FUNCTION
function makePostRequest(url, parameters, callback_function, return_xml) { // url, var1=test&var2=blah, update(), false
	var http_request = false;
	 if (window.XMLHttpRequest) { // Mozilla, Safari,... 
	http_request = new XMLHttpRequest(); 
	if (http_request.overrideMimeType) { 
	   //http_request.overrideMimeType('text/xml'); 
	} 
	 } else if (window.ActiveXObject) { // IE 
	try { 
	   http_request = new ActiveXObject("Msxml2.XMLHTTP"); 
	} catch (e) { 
	   try { 
		   http_request = new ActiveXObject("Microsoft.XMLHTTP"); 
	   } catch (e) {} 
	} 
	 }
		
	 if (!http_request) { 
			 alert('Unfortunately you browser doesn\'t support this feature.'); 
			 return false; 
	 } 
	
	  http_request.onreadystatechange = function() { 
	if (http_request.readyState == 4) { 
	   if (http_request.status == 200) { 
		   if (return_xml) { 
			   eval(callback_function + '(http_request.responseXML)'); 
		   } else { 
		   //alert(http_request.responseText);
		       eval(callback_function + '(http_request.responseText)'); 
		   } 
	   } else { 
		   alert('There was a problem with the request.(Code: ' + http_request.status + ')'); 
	   } 
	} 
	 }
	 
	 http_request.open('POST', url, true);
	 http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	 http_request.setRequestHeader("Content-length", parameters.length);
	 http_request.setRequestHeader("Connection", "close");
	 http_request.send(parameters);
	 
}

// FUNCTION TO URL ENCODE A STRING
function urlencode(str) {
	return escape(str).replace(/\+/g,'%2B').replace(/%20/g, '+').replace(/\*/g, '%2A').replace(/\//g, '%2F').replace(/@/g, '%40');
}


// ------------------------------------------------------------------HOLE-BY-HOLE PAGE ------------------------------------------------

// FUNCTION TO NAVIGATE HOLE-BY-HOLES - NEXT
function hole_nav_next(course,hole_num){
	
	// MAKE AJAX REQUEST
	makeHttpRequest('/includes/ajax/hole.php?c='+course+'&hole_num='+hole_num, 'update', false);
	
}

// FUNCTION TO NAVIGATE HOLE-BY-HOLES - PREV
function hole_nav_prev(course,hole_num){
	
	// MAKE AJAX REQUEST
	makeHttpRequest('/includes/ajax/hole.php?c='+course+'&hole_num='+hole_num, 'update', false);
	
}


// ------------------------------------------------------------------EVENTS PAGE ------------------------------------------------
function event_details(id,status){
	
	// MAKE AJAX REQUEST
	makeHttpRequest('/includes/ajax/event_details.php?id='+id+'&status='+status, 'update', false);
}

// -------------------------------------------------------MEMBER LOGIN VALIDATION SERVER SIDE ----------------------------
// FUNCTION TO SUBMIT SEND TO FRIEND FORM REQUEST
function member_login(){
	
	// DEFINE VARIABLES AND ASSIGN THEM TO FORM VALUES
	var un = document.getElementById("un").value;
	var pw = document.getElementById("pw").value;
	
	// MAKE AJAX REQUEST
	makePostRequest('/includes/ajax/member_login_validate.php', 'un='+un+'&pw='+pw, 'update', false);
	
}





// -----------------------------------------------------RESPONSE FUNCTION----------------------------------------

// FUNCTION TO EVALUATE MY AJAX RESPONSES
function update(ajaxResponse){
	
	//alert(ajaxResponse);
	eval(ajaxResponse);
	
}